The cell is the basic structural and functional unit of life.

Mitochondria are the powerhouse of the cell, responsible for energy production.

The nucleus controls cellular activities and contains genetic material.

Ribosomes are involved in protein synthesis.

The cell membrane regulates the passage of substances in and out of the cell.

Chloroplasts are responsible for photosynthesis in plant cells.

Lysosomes contain enzymes and are involved in waste breakdown.

The synapse is the junction between two neurons, allowing communication.

Arteries carry blood away from the heart.

Red blood cells transport oxygen in the blood.

The small intestine is where nutrient absorption primarily occurs.

The respiratory system is responsible for the exchange of gases, mainly oxygen and carbon dioxide.

The pancreas produces insulin and regulates blood sugar levels.

The skeletal system provides support and protection for organs.

The skin is the largest organ of the human body.

The Golgi Apparatus is responsible for packaging and secreting cellular products.

The smooth endoplasmic reticulum is involved in detoxification and lipid synthesis.

The elbow joint is an example of a hinge joint.

The skeletal system is not involved in nutrient absorption.

Mitochondria are the powerhouse of the cell.

Gas exchange occurs in the alveoli of the lungs.

The pulmonary artery carries oxygenated blood from the lungs to the heart.

White blood cells play a crucial role in the immune system, fighting infections.

The cerebellum is responsible for coordinating muscle movements and balance.

The endocrine system regulates hormones and metabolic processes.

The liver is involved in detoxifying harmful substances.

The circulatory system transports oxygen and nutrients throughout the body.

The kidneys filter and remove waste products from the blood.

The ovaries produce eggs in females.

DNA controls cell division and carries genetic information.

Glycolysis is the process of breaking down glucose to produce energy in the absence of oxygen.

Blood type O is considered the universal donor as it lacks A and B antigens.

The majority of nutrient absorption occurs in the small intestine.

The respiratory system facilitates the exchange of gases, primarily oxygen and carbon dioxide.

The medulla oblongata controls basic bodily functions like breathing and heartbeat.

The immune system's primary function is to defend against infections and pathogens.

Insulin regulates blood sugar levels by facilitating glucose uptake by cells.

The lymphatic system plays a key role in immune defense by producing and transporting lymphocytes.

The heart is not a part of the nervous system; it is part of the circulatory system.

The endoskeleton provides support and protection for the body in vertebrates.

The pancreas produces insulin to regulate blood sugar levels.

The epiglottis prevents food from entering the trachea during swallowing.

Red bone marrow is responsible for the production of red blood cells.

The lens of the eye focuses light onto the retina for visual perception.

The gallbladder stores bile produced by the liver until it is needed for digestion.

Mucus-producing cells help trap and remove particles, preventing them from entering the lungs.

Mechanical digestion begins in the mouth through chewing and grinding of food.

The circulatory system transports oxygen and nutrients to cells throughout the body.

The liver plays a crucial role in detoxifying harmful substances in the blood.

Cilia help trap and move particles, assisting in the removal of foreign substances from the respiratory tract.

Fertilization usually occurs in the fallopian tubes.

The thymus gland plays a role in the maturation of T cells, a type of white blood cell.

Thyroxine, produced by the thyroid gland, regulates metabolism.

The Eustachian tube helps equalize air pressure between the middle ear and the external environment.

Neurotransmitters transmit signals between nerve cells in the nervous system.

Lymph nodes filter and purify lymph, removing pathogens and waste products.

The adrenal glands produce adrenaline, which prepares the body for the "fight or flight" response.

The retina contains light-sensitive cells called photoreceptors, essential for vision.

The spleen filters blood and removes damaged or old blood cells from circulation.

The testes are responsible for producing sperm in males.

The pituitary gland regulates and controls the functions of other endocrine glands in the body.

The integumentary system provides a physical barrier against pathogens and infections.

The bronchi filter air and transport it to the lungs.

The stomach primarily performs chemical digestion of proteins through the action of gastric juices.

The cerebellum coordinates voluntary muscle movements and balance.

The ciliary muscle adjusts the shape of the lens to facilitate focusing on near or distant objects.

The myelin sheath provides insulation for nerve fibers, allowing faster transmission of nerve signals.

Testosterone is responsible for the development of secondary sexual characteristics in males.

The gallbladder stores bile produced by the liver until it is needed for digestion.

The epiglottis prevents food from entering the trachea during swallowing.

Nephrons are responsible for filtering blood and producing urine in the kidneys.

The inner ear, specifically the cochlea, detects sound vibrations and transmits them to the brain.

The immune system defends the body against pathogens and foreign invaders.

The hypothalamus plays a role in regulating body temperature.

Mucus in the digestive system helps lubricate and protect the walls of the digestive tract.